Model | LDT 202B | LDT202BL |
Telescope | ||
Length of Telescope | 156mm | |
Image | Erect | |
Objective Lens Aperture | 45mm | |
Magnification | 30X | |
Field of View | 1°30″ | |
Resolving Power | 3.5″ | |
Shortest Sighting Distance | 1.3m | 1.5m |
Stadia Ratio | 100 | |
Stadia Constant | 0 | |
Angle Measurement | ||
Method | Absolute type encoder | |
Detecting | Horizontal:Double | |
Vertical:Single | ||
MinimumReading | 1"/5" Optional | |
Accuracy | 2″ | |
Display Panel | Double Face | |
Compenstor | ||
Tilt Sensor | Yes | |
Range | +/-3′ | |
Output Interface | ||
Communication Standard | RS232C | |
Date Output Interface | Yes | |
Memory | 1000 | |
Laser Plummet | ||
Laser power | 1mW | |
Dot Diameter | <=2mm | |
Accuracy | 1.0mm | |
Base | ||
Base Model | Separated | |
Power | ||
Battery | Chargeable battery or 4*AA alkaline | |
Working Time | About 45 Hours | |
Bubble | ||
Sensitivity of Long Vial | 30″/2mm | |
Sensitivity of Bubble | 8′/2mm | |
Other | ||
Size | 160x175x340mm | |
Temperature | -20℃~+50℃ | |
Net Weight | 4.8kgs | |
Collimation laser | ||
Wave length | No | 635nm |
Max working distance | No | 200m(cover the sunsight) |
Coaxial error of Laser | No | <=10″ |